package club.zhangliyuanblog.service.impl;

import club.zhangliyuanblog.service.IMessageProvider;
import cn.hutool.core.lang.UUID;
import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.stream.annotation.EnableBinding;
import org.springframework.cloud.stream.messaging.Source;
import org.springframework.messaging.MessageChannel;
import org.springframework.messaging.support.MessageBuilder;

import javax.annotation.Resource;

/**
 * @author liyuan.zhang
 * @date 2021/6/1 18:33
 */
@Slf4j
@EnableBinding(Source.class) // 定义消息的推送管道
public class MessageProvider implements IMessageProvider {


    @Resource
    private MessageChannel output; // 消息发送管道

    @Override
    public String send() {
        String serial = UUID.randomUUID().toString();
        output.send(MessageBuilder.withPayload(serial).build());
        log.info("**************  serial is {}", serial);
        return null;
    }
}
